Dodge Workshop Service and Repair Manuals

EGR Control Valve: Testing and Inspection

EGR CONTROL SOLENOID VALVE

Testing The EGR Solenoid Valve

1.

Disconnect the vacuum hose(s) from the solenoid valve.

2.

Disconnect the electrical harness connector.

3.

Connect a hand vacuum pump to the vacuum hose nipple.

4.

Connect jumper leads to the solenoid terminals.

EGR Control Solenoid Valve Voltage Test

5.

While applying vacuum to the solenoid, apply battery voltage directly to the solenoid terminals.
Vacuum should HOLD.

6.

Discontinue voltage. 
Vacuum should LEAK.

EGR Control Solenoid Valve Resistance Check

7.

Measure the resistance between the terminals of the solenoid valve. 
Refer to Powertrain Management/Emission Control Systems/Specifications/Electrical